# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # No need to keep too much generations.
  boot.loader.systemd-boot.configurationLimit = 5;

  nix = {
    # GC weekly to keep disk usage low.
    gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 1w";
    };

    settings = {
      experimental-features = [ "nix-command" "flakes" ];

      #trusted-users = [ "root" "dalu" ];
      substituters = [
        "https://mirror.sjtu.edu.cn/nix-channels/store"
        "https://mirrors.ustc.edu.cn/nix-channels/store"
	"https://cache.nixos.org"
        # Nix community's cache server.
	"https://nix-community.cachix.org"
      ];
      trusted-public-keys = [
        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
      ];

      # Optimise storage
      auto-optimise-store = true;
    };
  };

  networking.hostName = "nixos"; # Define your hostname.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Enable networking
  networking.networkmanager.enable = true;

  # Set your time zone.
  time.timeZone = "Asia/Shanghai";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "en_US.UTF-8";
    LC_IDENTIFICATION = "en_US.UTF-8";
    LC_MEASUREMENT = "en_US.UTF-8";
    LC_MONETARY = "en_US.UTF-8";
    LC_NAME = "en_US.UTF-8";
    LC_NUMERIC = "en_US.UTF-8";
    LC_PAPER = "en_US.UTF-8";
    LC_TELEPHONE = "en_US.UTF-8";
    LC_TIME = "en_US.UTF-8";
  };

  services.xserver = {
    # Enable the X11 windowing system.
    enable = true;

    # Enable the GNOME Desktop Environment.
    displayManager.gdm.enable = true;
    desktopManager.gnome.enable = true;

    # Configure keymap in X11.
    xkb = {
      layout = "us";
      variant = "";
      options = "ctrl:swapcaps";
    };
  };

  # Apply xkb setting in outside of X11.
  console.useXkbConfig = true;

  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound with pipewire.
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # If you want to use JACK applications, uncomment this
    #jack.enable = true;

    # use the example session manager (no others are packaged yet so this is enabled by default,
    # no need to redefine it in your config for now)
    #media-session.enable = true;
  };

  # Enable touchpad support (enabled default in most desktopManager).
  # services.xserver.libinput.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.dalu = {
    isNormalUser = true;
    description = "dalu";
    extraGroups = [ "networkmanager" "wheel" ];
    shell = pkgs.zsh;
    packages = with pkgs; [
    #  thunderbird
    ];
  };

  programs = {
    # Always enable the shell system-wide.
    zsh.enable = true;
    firefox.enable = true;
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  environment = {
    # List packages installed in system profile.
    # To search, run $ nix search vim
    systemPackages = with pkgs; [
      git
      vim
      curl
    ];

    variables.EDITOR = "vim";

    pathsToLink = [ "/share/zsh" ];

    etc."vimrc".source = ./vimrc;
  };


  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  # services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  networking.firewall.enable = false;

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "24.05"; # Did you read the comment?

}
